Hi Subhajit,

You have got 17000 rank in WBJEE and twf rank 4000. See the twf hardly matters in securing branch. Most of the time it is your GMR rank or category rank which is taken into consideration for allocating branch.

Based on your rank 17000 you would not get CSE and IT in the top Government College. You will hardly get even lower branches in those colleges. To know which college you can get admission in check the following link which gives closing rank for different branches in different colleges: https://www.google.com/amp/s/engineering.careers360.com/articles/wbjee-cutoff/amp

You can also use college predictor tool for the same:

All the best.